Swifties believe Taylor Swift hinted at a future with boyfriend Travis Kelce.

The “Cruel Summer” singer, 33, shocked the crowd in Argentina Saturday night when she started playing her hit song “End Game” as part of her surprise acoustic set.

The track — which is from her 2017 album, “Reputation” — includes several sports references and describes a romance that Swift believes will never end.

Her decision to play the song with Kelce, 34, in the crowd seemingly indicated that she sees their relationship going the distance — and fans believe they noticed a specific hint that confirms their theory.

 

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Taylor Swift fans believe the singer gave a nod to Travis Kelce while singing “End Game.”AP

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The 2017 track is about being in a relationship that will withstand the test of time.findsforpeanuts/TikTok

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When Swift started singing the song, each fan’s bracelet changed from blue to red and gold.findsforpeanuts/TikTok
Right when Swift started to play the song on piano, the crowd’s color-changing wristbands started flashing red and gold — the Kansas City Chiefs’ colors.

“Just realized the bracelets changed from Blue to RED + GOLD (Chiefs colors) during End Game * with Travis present  ♥️,” one fan wrote atop a video of the crowd on TikTok.

“She’s a mastermind, after all & the whole show was like a huge love letter to travis,” a second person added.

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Kelce’s team, the Kansas City Chiefs, have the same colors.Getty Images
“Can we re-focus on the fact that Taylor opened her heart out in front of 80k people, Travis included?” another fan wrote on Twitter. “The bracelets lights being red and yellow while she sang her heart out to End Game . This was her saying ‘Yes, I’m in love, yes that’s my man, yes I want him to be the one.’”

“I just wanna know what miss ma’am was playing at, singing endgame and having everyone’s bracelets INCLUDING Travis’ light up red and yellow,” a fourth person chimed in.

While there is no video of Kelce’s reaction to the secret message, Swift seemingly tried to suppress a smile while looking out at the illuminated crowd.

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“She’s a mastermind, after all & the whole show was like a huge love letter to travis,” one fan wrote.chariah/Instagram

Yet “End Game” wasn’t the only song Swift dedicated to her new man during the show.

The 12-time Grammy winner couldn’t keep her eyes off Kelce as she sang “Lover” — despite “disassociating” while singing the love song during previous shows.

Swift had a smile plastered across her face as she stared into the VIP tent — where the athlete danced with her dad, Scott Swift — while singing about being madly in love.

 

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Swift also seemingly hinted at her romance with the NFL star during two other songs.Getty Images for TAS Rights Management
If that wasn’t enough, Taylor also directly addressed the two-time Super Bowl champion during her final song of the night, “Karma.”

While she typically sings “Karma is the guy on the screen, coming straight home to me,” with Kelce in the crowd, she switched the line to “guy on the Chiefs.”

The change caught Kelce — and Taylor’s father — by surprise as the NFL star let out a huge laugh and raised his hands to his face.

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During “Karma,” she gave a special shoutout to the “guy on the Chiefs.”

Yet the football player later admitted that Taylor warned him about the special shout-out.

“I had no clue. Well, I might have had a little bit of a clue, but definitely when I heard it come out of her mouth, it still shocked me,” he said on Wednesday’s episode of his “New Heights” podcast.

“It was like, ‘Oh, she really just said that,’” the tight end recalled.

However, he stayed tight-lipped on that now-viral kiss between the two.